The Tuf-Tite 20" Riser-to-Riser (RTR) Adapter is a specialized transition ring used to convert or connect different types of septic system components to the Tuf-Tite system. It is primarily used to adapt existing plastic risers, concrete pipe, or corrugated pipe so they can accept standard Tuf-Tite 20" risers and lids. 

Features:

System Conversion: Designed to bridge existing infrastructure—such as the lip of corrugated pipe or other brands of risers—allowing for the installation of Tuf-Tite components.

Material: Manufactured from high-density polyethylene for long-term underground durability and resistance to environmental degradation.

Watertight Seal: Engineered to provide a leak-proof connection when used with recommended butyl sealant rope and stainless steel fasteners.

Dimensions: Fits 20-inch diameter Tuf-Tite products.

Versatile Compatibility: Compatible with various pipe types, including most IPEX corrugated pipe and certain tank brands like Fuji Clean (specifically for the gray adapter model)